/*
 * Copyright (C) 2018 The Asiainfo-Ability Authors
 *
 *      Licensed under the Apache License, Version 2.0 (the "License");
 *      you may not use this file except in compliance with the License.
 *      You may obtain a copy of the License at
 *
 *          http://www.apache.org/licenses/LICENSE-2.0
 *
 *      Unless required by applicable law or agreed to in writing, software
 *      distributed under the License is distributed on an "AS IS" BASIS,
 *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *      See the License for the specific language governing permissions and
 *      limitations under the License.
 */

package org.asiainfo.ability.base.queue;

import org.springframework.stereotype.Component;

import java.util.IdentityHashMap;
import java.util.Map;

/**
 * @Author: visen
 * @Date: 2018/3/1
 * @Description:
 */
public class QueueObserver {

    private Map<Class<? extends OperEvent>, OperHandler> observedMap = new IdentityHashMap();

    public void subscribeEvent(Class<? extends OperEvent> clazz, OperHandler handler) {
        observedMap.put(clazz, handler);
    }

    public void publishEvent(OperEvent event) {
        OperHandler handler = observedMap.get(event.getClass());
        if (handler != null) {
            handler.process(event);
        }
    }
}
